Finding the Fourth Proportional to 285,204.79, 393,582.73 and 156,151.63
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Solution
The fourth proportional to 285,204.79, 393,582.73 and 156,151.63 is: 215,489.32
Step by Step Solution
- Step 1: Write the proportion equation
285,204.79 : 393,582.73 = 156,151.63 : x - Step 2: Convert to fraction form
285,204.79/393,582.73 = 156,151.63/x - Step 3: Cross multiply
285,204.79x = 393,582.73 × 156,151.63 - Step 4: Simplify right side
285,204.79x = 61,458,585,813.31 - Step 5: Solve for x
x = 61,458,585,813.31/285,204.79 - Step 6: Final answer
x = 215,489.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.